Internal-combustion engine.



G. G. NICHOLS 8: W. H. WRIGHT. INTERNAL COMBUSTION ENGINE.APPLIOATIOH)IILBD rm. 6, 1m.

1,107,232 Patented Aug. 11,191

7 czwz @zA-Nar W1'r 77@5sas 4 MAW l UNITED STATES PATENT orrron.

CHARLESC. NICHOLS AND WILLIAM H. WRIGHT, 0F BUFFALO, NEW YORK, AS-SIGNORS TO NIGHOLS & WRIGHT MOTOR 00., OF BUFFALO, NEW YORK, A COR-PORATION OF NEW YORK.

, INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Aug. 11, 1914.

Application filed February 6, 1914. Serial No. 816,949.

and lViLLIAM H. WRIGHT, citizens of the' United States, residing atBuffalo, in the county of Erie and State of New York,have invented newand useful Improvements in Internal-Combustion Engines, of which thefollowing is a specification;

-Our invention relates to improvements in internal combustion engines.More particularly it relates to improvements in fuel and ignitioncontrol.

The object of our invention is to provide, in connection with agovernor, electrical means for controlling the charging of the cylinderwith fuel when the engine exceeds a predetermined speed and forreestablishing the charging when the speed falls below suchpredetermined speed, and also for controlling the ignition to correspondtherewith.

Referring to the drawings forming a part of this specification, Figure 1is a sectional view of an engine provided with our .improvements, theelectric circuits being shown diagrammatically. Fig. 2 is a section onthe line 2 2 of Fig. 1. I

We have shown our invention adapted to a two-cycle engine, in which 1 isthe cylinder, 3 is the piston, 4 is the crank-case, '5 is thecrank-shaft provided with the usual flywheel, and 6 is a governor ofwell-known type. The exhaust port is not shown, but is of the usual formand operates in the usual manner. The crank-chamber is normally closed.The fuel inlet port is at 7 and is uncovered by the piston as it nearsthe end of; its stroke downwardly. In this port is placed a fuel valve 8provided witha needle 9 for controlling the volume, an atomizing nozzle10, and a ball or float 11 therein to as. Air for admixture with thefuel is, admitted through the port 12, which'is uncovered hythe pistonat the close of its outward fstroke. A source of electric ener 13,is-provided in the usual manner, an also a spark-coil 14 which connectswith the spark-plug 15 by a wire 23, the other pole going to ground asusual.

Mounted upon the crank-case 4 IS a yoke 24 which takes over, but clearfrom, the

shaft 5. Within this yoke is a ring 16, which is an electrical conductorand which is pivoted to the governor 6 by a connectingrod 17 Upon oneinner face of the yoke 24 but insulated therefrom are segmental plates18 and 19, and upon, the other inner face of said yoke, similarlyconstructed and insulated, are segmental plates 25 and 26. The plates 25and 26 are more clearly shown in Fig. 2, and the plates 18 and 19 aresubstantially identical therewith. When the ring 16 is in contact withthe plates 18 and 19 current will flow from battery 13 through wire 20to plate 19, thence through the ring 16 to plate 18, thence by wire 21to the sparkcoil 14 and back to battery by wire 22. This will energizethe spark-coil which Willproduce the firin spark in the usualmanner.When the englne exceeds the predetermined maximum speed, the governor 6will move the ring 16 out of contact with the plates 18 and 19 and breakthe electrical connection between battery and spark-coil.

Opening into the crank-case 41 is a port 27, which is opened and closedby a valve 28. The stem of this valve 28 connects with the core of asolenoid 29. This port is normally closed, being. opened only when theengine exceeds the predetermined maximum speed as now described. Whenthe engine exceeds the maximum speed the ring 16 is moved out of contactwith the plates 18 and 19, as above described, by the governor -6 and ismoved into contact with the plates 25 and 26. This movement not only stos ignition by breaking the circuit of the spar coil but stops chargingthe engine in the following mahner: The ring 16 being in contact withthe plates 25 and 26, current flows from'battery 13 through wire 30,solenoid 29, wire '31, plate 25, ring 16, plate 26, and wire 32 back tobattery. This energizes the solenoid 29 and causes it to open the valve28. Consequently, with the valve 27 open, when th'episton 3 moves downon the explosion stroke, the air in the crank-chamber gravity or byspring action, if desired, and normal action is resumed.

Having thus described our invention, we claim 1. In an internalcombustion engine, in

combination with a governor, a yoke mount-l ed over the crank-shaft, aring on said shaft Within said yoke connected to said governor to bemoved axially thereby, electrical contacts on said yoke insulatedtherefrom and capable of making electrical connection with said ring, asource of electric energy, a spark-coil and wires connecting the samewith said contacts, a second pair of contacts on said yoke capable ofbeing electrically connected by said ring, and a valve for preventingair charge when said ring is out of electrical connection with saidfirst-mentioned pair ofcontacts.

2. In an internal combustion engine, in combination with a governor,means for regulating the fuel-charging of the engine comprising anopening from atmosphere into the crank-chamber, a valve 'in saidopening, a solenoid governing said valve, a circuit and source ofelectric energy for said solenoid, and an electric switch operated bysaid governor for opening and closing said circult.

3. lln an internal combustion engine, in combination with a governor, ayoke mounted over the crank-shaft, a ringv on said shaft withinsaid yokeconnected to said governor to be moved axially thereby, electricalcontacts on said yoke insulated therefrom and capable of beingelectrically connected by said ring, a source of electric energy, aspark-coil and Wires connecting the same With said contacts, whereby thespark-coil circuit is closed through said ring excepting When saidgovernormoves said ring out of contact: a second pair e11. v. contactson sand yoke insulated therefrom, wires connecting said contacts withsaid battery-,- an opening closes the circuit of said solenoid to opensaid valve.

4. In a two-cycle internal combustion engine, in combination with agovernor and means actuated by said governor for controlling thespark-coil circuit, means for preventing the normal charging ofthecylinder with fuel by letting off the crank-chamber pressure upon theexplosion stroke comprising an opening in said crank-chamber, a

valve in said opening and means for actuating said valve controlled bysaid governor.

5. In a two-cycle internal combustion engine, in combination With agovernor, means for preventing the normal charging of the cylinder withfuel comprising an opening in the crank-chamber to atmosphere, a valvein said opening, an electromagnetic device for operating said valve, andan electric switch opened and closed by the action of said governor forcontrolling said electromagnetic device, whereby pressure in saidcrankchamber is removed atthe charging period when said governor isacting to retard the speed of the engine.

In testimony that we claim the foregoing invention We have hereunto setour hands in the presence of two WltIlGSSBS.

enannns e motions. WILLIAM H. vvnrenr.

Witnesses:

D. H. HARPER, L. A. DEUTHER.

